I have been having a strong rectal temperature fetish thoughout my life.
As a teenager, I was very shy and I spent hours masturbating, thinking of all the girls I did not dare to speak to, often with a thermometer up my butt.
Eventually, at 21, I found a girl ( or she found me).Christine made me discover sex, and it was wonderfull. After a few days of hot sex, I brough a thermometer with me, hoping it would spice up our relation.
To my surprise, Christine was shocked and we allmost broke out on that day. She declared rectal temperature was something disgusting and she felt my taste for it was a proof of hidden gay tendancies.
So, during the four years, we were ''together'', we had a lot of good sex, including anal, but she allways refused to take my temperature or to have hers taken.
Christine spent a lot of time studying abroad during this period of time.I remember telling her that, when we were separated, I masturbated thinking about her with a thermometer in my ass.She was shocked again and she made me promise to stop, not to masturbate, but to do it with a thermometer in my butt.
Fortunatly, Maria, my second girlfriend was just the opposite to Christine. She was very much into medfet. So, every time we were to have sex, she imposed a comprehensive medical exam on me, allways ending with a rectal temperature taking on her lap. I was in Heaven….